<template>
  <div>
    <!-- 面包屑区域 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <!-- 2.准备一个echarts容器 -->
     <div id="main" style="width: 600px;height:400px;"></div>
    </el-card>
  </div>
</template>

<script>
import _ from 'lodash'
import {getreports} from '@/api/index.js'
//* 1.导入echarts
import echarts from 'echarts'
export default {
  data(){
    return{
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      },
      res:{}
    }
  },
  async mounted(){
    //* 3.基于准备好的实例 初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'));
    console.log(_)
    let {data:res} = await getreports()
    console.log(res)
      const result = _.merge(res.data,this.options)
      //* 5.使用刚指定的配置项和数据显示图表。
      myChart.setOption(result);
  }
}
</script>

<style lang="less" scoped>
.el-card{
  margin-top: 15px;
}
</style>